/* 头部样式 */
header .logo {
    background: url('../images/new-logo-white2.png');
}

.nav-item.active {
    color: rgb(12, 219, 255);
    border-bottom: 3px solid rgb(12, 219, 255);
}

/* 登录注册 */
.login-register .register {
    color: #fff;
}

.banner {
    overflow: hidden;
    height: 390px;
    background: #292929;
    position: relative;
}

.banner #mydiv {
    position: relative;
    top: 60px;
}

canvas {
    background: none;
}


/* 主体内容 */
main {
    margin: 0 auto;
    height: 2200px;
    position: relative;
    background: #f8f8f8;
}

.banner>div {
    position: relative;
    text-align: center;
    top: -166px;
    color: #fff;
}

.ban-title {
    font-size: 36px;
}

.ban-des {
    margin: 13px 0;
}

.title {
    font-weight: bold;
    line-height: 36px;
    margin: 20px auto;
}

.title span {
    font-size: 15px;
    color: #ccc;
}

.title::after {
    content: '';
    display: block;
    width: 18px;
    height: 2px;
    background: #1271EF;
}

.substance li {
    margin-right: 25px;
    padding: 10px;
    border: 1px solid #eee;
    width: 356px;
    height: 342px;
}

.substance img {
    width: 334px;
    height: 145px;
    margin-bottom: 10px;
}

.substance p {
    margin: 12px;
    color: #000;
}

.substance a p:nth-child(3) {
    font-size: 12px;
    color: #666;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
    overflow: hidden;
}

.substance a p:nth-child(4) {
    color: #1271ef;
    font-size: 14px;
}

.partner div {
    text-align: center;
    display: inline-block;
    margin: 0 20px 15px 0;
    width: 354px;
    height: 123px;
    padding: 42px;
    background: #fff;
}

/* 底部样式 */
footer {
    height: 300px;
}

footer dl {
    float: left;
    margin: 0 82px 40px 0;
}

footer dl dt {
    margin-bottom: 34px;
    font-size: 16;
}

footer dl dd {
    height: 28px;
    line-height: 28px;
    font-size: 12px;
    color: #aaa;
}

footer .QR-code {
    text-align: right;
}

footer .contact p {
    margin: 8px 0 24px;
    color: #ccc;
    font-size: 13px;
}

.copy {
    font-size: 14px;
    color: #ccc;
    height: 46px;
    line-height: 46px;
}

.copy img {
    position: relative;
    top: 3px;
    margin-right: 4px;
}

.return {
    border-radius: 21px;
    width: 42px;
    height: 42px;
    position: fixed;
    bottom: 20px;
    right: 134px;
    display: none;
    background: url("../images/returntopicon.jpg") no-repeat -162px -54px;
}

.roll {
    position: fixed;
    right: 200px;
    top: 50%;
    font-size: 14px;
    line-height: 50px;
    transform: translateY(-50%);
    cursor: pointer;
}

.on::after {
    content: '';
    display: block;
    position: relative;
    left: -16px;
    top: -26px;
    width: 10px;
    height: 2px;
    background: #1271EF;
}